ANY number that you can write as a fraction (with whole numbers top and bottom) is rational.
Yes because 21 is a rational number
Yes. Any whole number is rational. An irrational number is one that goes on forever without repeating, like √2=1.414213...
Yes, 13.'21' repeating is a rational number because it can be expressed in the form of a fraction as 436/33
Yes, 0.212121 is a rational number because it can be expressed as a fraction. Specifically, it can be represented as 21/99, which simplifies to 7/33. Rational numbers are defined as numbers that can be expressed as the quotient of two integers, and since 0.212121 fits this definition, it is indeed a rational number.
0.21 is a rational number because it can be expressed as a fraction in the form of 21/100
Yes, any integer over any other integer (except zero) is always a rational number.
Any number that is presented as an integer "over" (aka divided by) an integer is automatically a rational number - that's what the definition of a rational number is.
Yes because 21 is a rational number
It is equal to 21/2 which is a rational number
21 is a rational number.
Yes. Any whole number is rational. An irrational number is one that goes on forever without repeating, like √2=1.414213...
21/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Yes. Any whole number is rational. An irrational number is one that goes on forever without repeating, like √2=1.414213...
Yes because it can be expressed as a fraction in the form of 21/2
Yes, 13.'21' repeating is a rational number because it can be expressed in the form of a fraction as 436/33
Rational.
0.21 is a rational number because it can be expressed as a fraction in the form of 21/100